/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2008-2011, Salzburg Research. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * - Neither the name of the KiWi Project nor the names of its contributors
 *   may be used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * Contributor(s):
 *  sschaffe
 *
 * File Info:
 *   User: sschaffe
 *   Date: 2011/02/15
 *   Time: 18:10
 *
 * Project: KiWi2, kiwi-core module
 */

package kiwi.core.webservices.io;

import kiwi.core.api.importer.ImportService;
import kiwi.core.api.importer.KiWiImportException;
import kiwi.core.model.user.KiWiUser;
import kiwi.core.qualifiers.transaction.Transactional;
import kiwi.core.qualifiers.user.CurrentUser;
import org.slf4j.Logger;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;
import java.io.IOException;

/**
 * A webservice offering functionality to import data from the KiWi knowledge base.
 * <p/>
 * User: sschaffe
 */
@ApplicationScoped
@Transactional
@Path("/import")
public class ImportWebService {

    @Inject
    private Logger log;

    @Inject
    private ImportService importService;

    @Inject @CurrentUser
    private KiWiUser currentUser;


    /**
     * Upload content and import it into the KiWi 2 system. The importer is selected based on the Content-Type header
     * of the HTTP request.
     *
     * @param type
     * @param request
     */
    @PUT
    public Response uploadData(@HeaderParam("Content-Type") String type, @Context HttpServletRequest request) throws IOException, KiWiImportException {
        if(type.lastIndexOf(';') >= 0) {
            type = type.substring(0,type.lastIndexOf(';'));
        }

        try {
            importService.importData(request.getInputStream(),type, null, null, currentUser);
            return Response.ok().entity("Import was successful").build();
        } catch(KiWiImportException ex) {
            log.error("import error while importing content: {}",ex.getMessage());
            return Response.serverError().entity(ex.getMessage()).build();
        } catch(IOException ex) {
            log.error("I/O error while importing content: {}",ex.getMessage());
            return Response.serverError().entity(ex.getMessage()).build();
        }
    }

}
